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RU2006101401A - SYNCHRONIZED BROADCAST / MULTI-ADDRESS COMMUNICATION - Google Patents

SYNCHRONIZED BROADCAST / MULTI-ADDRESS COMMUNICATION Download PDF

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Publication number
RU2006101401A
RU2006101401A RU2006101401/09A RU2006101401A RU2006101401A RU 2006101401 A RU2006101401 A RU 2006101401A RU 2006101401/09 A RU2006101401/09 A RU 2006101401/09A RU 2006101401 A RU2006101401 A RU 2006101401A RU 2006101401 A RU2006101401 A RU 2006101401A
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Russia
Prior art keywords
broadcast
information
transmission
modulation
modulated
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RU2006101401/09A
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Russian (ru)
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RU2379840C2 (en
Inventor
Мэттью С. ГРОБ (US)
Мэттью С. ГРОБ
Питер Дж. БЛЭК (US)
Питер Дж. БЛЭК
Срикант ДЖАЯРАМАН (US)
Срикант Джаяраман
Пол Э. ЯКОБС (US)
Пол Э. ЯКОБС
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Квэлкомм Инкорпорейтед (US)
Квэлкомм Инкорпорейтед
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/023Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H04L5/026Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA] using code division
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/01Equalisers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/2605Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607Cyclic extensions

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)
  • Radio Relay Systems (AREA)

Claims (41)

1. Способ синхронизированной широковещательной передачи в системе связи с расширением спектра, заключающийся в том, что расширяют спектр первой информации с помощью первого кода расширения спектра, определенного для передатчика; и расширяют спектр широковещательной информации с помощью кода расширения спектра, общего для многочисленных передатчиков.1. A synchronized broadcast method in a spread spectrum communication system, comprising spreading the spectrum of the first information using a first spreading code defined for a transmitter; and expanding the range of broadcast information using a spreading code common to multiple transmitters. 2. Способ по п.1, в котором дополнительно синхронизируют по времени передачи по меньшей мере с одним другим передатчиком в системе с расширением спектра.2. The method according to claim 1, in which additionally synchronize the transmission time with at least one other transmitter in a spread spectrum system. 3. Способ по п.1, в котором дополнительно готовят передачу, имеющую множество временных слотов, причем данная передача содержит множество слотов, модулированных с кодовым разделением сигналов, и синхронизированный широковещательный слот.3. The method according to claim 1, in which additionally prepare a transmission having many time slots, and this transmission contains many slots modulated with code division of signals, and a synchronized broadcast slot. 4. Способ по п.3, в котором дополнительно модулируют первую информацию, используя модуляцию с кодовым разделением сигналов, причем первую информацию передают в множестве слотов, модулированных с кодовым разделением сигналов, и модулируют широковещательную информацию, используя модуляцию с ортогональным частотным разделением сигналов, причем широковещательную информацию передают в синхронизированном широковещательном слоте.4. The method according to claim 3, in which additionally modulate the first information using modulation with code division of signals, the first information being transmitted in a plurality of slots modulated with code division of signals, and modulate broadcast information using modulation with orthogonal frequency division of signals, broadcast information is transmitted in a synchronized broadcast slot. 5. Устройство для синхронизированной широковещательной передачи в системе связи с расширением спектра, содержащее первое средство для расширения спектра первой информации с помощью первого кода расширения спектра, определенного для передатчика; и второе средство для расширения спектра широковещательной информации с помощью кода расширения спектра широковещания, общего для многочисленных передатчиков.5. A device for synchronized broadcasting in a spread spectrum communication system, comprising: first means for spreading the spectrum of the first information with a first spreading code defined for the transmitter; and second means for spreading the broadcast information spectrum using a broadcast spreading code common to multiple transmitters. 6. Устройство по п.5, дополнительно содержащее средство для передач, синхронизированных по времени по меньшей мере с одним другим передатчиком в системе с расширением спектра.6. The device according to claim 5, further comprising means for transmissions synchronized in time with at least one other transmitter in a spread spectrum system. 7. Устройство по п.5, дополнительно содержащее средство для подготовки передачи, имеющей множество временных слотов, причем данная передача содержит множество слотов, модулированных с кодовым разделением сигналов, и синхронизированный слот широковещания.7. The device according to claim 5, further comprising means for preparing a transmission having a plurality of time slots, said transmission comprising a plurality of code modulated slots and a synchronized broadcast slot. 8. Устройство по п.7, дополнительно содержащее третье средство для модулирования первой информации с использованием модуляции с кодовым разделением сигналов, причем первую информацию передают в множестве слотов, модулированных с кодовым разделением сигналов, и четвертое средство для модулирования широковещательной информации с использованием модуляции с ортогональным частотным разделением сигналов, причем широковещательную информацию передают в синхронизированном широковещательном слоте.8. The device according to claim 7, further comprising third means for modulating the first information using code division modulation, the first information being transmitted in a plurality of code modulated slots, and fourth means for modulating broadcast information using orthogonal modulation frequency division of signals, and broadcast information is transmitted in a synchronized broadcast slot. 9. Приемник в системе связи с расширением спектра, содержащий средство для приема первой информации с первым кодом расширения спектра, определенным для передатчика первой информации; и средство для приема широковещательной информации с кодом расширения спектра широковещания, общим для многочисленных передатчиков информации широковещания.9. A receiver in a spread spectrum communication system comprising: means for receiving first information with a first spread spectrum code defined for a transmitter of first information; and means for receiving broadcast information with a broadcast spectrum spreading code common to multiple transmitters of broadcast information. 10. Устройство сети доступа, содержащее первый модулятор для модуляции сигналов первой формы, оптимизированных для одноадресных передач; модулятор широковещания для модуляции сигналов второй формы, оптимизированных для широковещательных передач; и контроллер модуляции для предоставления возможности передачи с помощью одного из модуляторов: первого модулятора или модулятора широковещания как функции от типа передаваемой информации.10. An access network device comprising: a first modulator for modulating first waveforms optimized for unicast transmissions; a broadcast modulator for modulating second waveforms optimized for broadcast transmissions; and a modulation controller for enabling transmission using one of the modulators: a first modulator or a broadcast modulator as a function of the type of information transmitted. 11. Устройство сети доступа по п.10, в котором контроллер модуляции содержит первый тракт для обработки одноадресных передач, содержащий первый кодер и первый перемежитель, и второй тракт для обработки широковещательных передач, содержащий второй кодер и второй перемежитель.11. The access network device of claim 10, wherein the modulation controller comprises a first path for processing unicast transmissions comprising a first encoder and a first interleaver, and a second path for processing broadcast transmissions comprising a second encoder and a second interleaver. 12. Устройство сети доступа по п.10, в котором модулятор широковещания является модулятором с ортогональным частотным разделением сигналов, а первый модулятор является модулятором с кодовым разделением сигналов.12. The access network device of claim 10, in which the broadcast modulator is a modulator with orthogonal frequency division of signals, and the first modulator is a modulator with code division of signals. 13. Устройство сети доступа по п.11, дополнительно содержащее блок выбора, сконфигурированный с возможностью направления широковещательной информации в модулятор широковещания и сконфигурированный с возможностью направления информации одноадресной передачи в первый модулятор.13. The access network device according to claim 11, further comprising a selection unit configured to send broadcast information to the broadcast modulator and configured to send unicast information to the first modulator. 14. Устройство сети доступа по п.13, дополнительно содержащее блок передачи, сконфигурированный с возможностью подготовки модулированной информации к передаче в формате временных слотов, причем широковещательную информацию и информацию одноадресной передачи мультиплексируют с временным разделением в один временной слот передачи.14. The access network device according to item 13, further comprising a transmission unit configured to prepare modulated information for transmission in a time slot format, wherein broadcast information and unicast information are time division multiplexed into one transmission time slot. 15. Устройство сети доступа по п.14, в котором один временной слот передачи включает в себя пилот-сигнал широковещания.15. The access network apparatus of claim 14, wherein one transmission time slot includes a broadcast pilot. 16. Устройство терминала доступа, содержащее первый демодулятор для демодуляции одноадресных передач; демодулятор широковещания для демодуляции широковещательных передач и контроллер модуляции для обеспечения работы одного из модуляторов: первого модулятора или модулятора широковещания, как функции от типа принятой информации.16. An access terminal device comprising: a first demodulator for demodulating unicast transmissions; a broadcast demodulator for demodulating broadcast transmissions and a modulation controller for providing operation of one of the modulators: a first modulator or a broadcast modulator, as a function of the type of received information. 17. Устройство терминала доступа по п.16, дополнительно содержащее корректор, выполненный с возможностью оценки принятой информации.17. The access terminal apparatus of claim 16, further comprising an corrector configured to evaluate received information. 18. Устройство терминала доступа по п.17, дополнительно содержащее контроллер широковещания для идентификации широковещательного пилот-сигнала и управления корректором для обучения на пилот-сигнале широковещания.18. The access terminal apparatus of claim 17, further comprising a broadcast controller for identifying the broadcast pilot and controlling the corrector for training on the broadcast pilot. 19. Устройство терминала доступа по п.18, в котором корректор используют для информации трафика и широковещательной информации.19. The access terminal apparatus of claim 18, wherein the corrector is used for traffic information and broadcast information. 20. Устройство терминала доступа по п.19, в котором контроллер широковещания конфигурирует корректор в первую конфигурацию для информации трафика и во вторую конфигурацию для широковещательной информации.20. The access terminal apparatus of claim 19, wherein the broadcast controller configures the corrector in a first configuration for traffic information and a second configuration for broadcast information. 21. Устройство терминала доступа по п.20, в котором конфигурация относится к количеству отводов, используемых для осуществления корректора и регулирования коэффициентов фильтрации.21. The access terminal device according to claim 20, in which the configuration relates to the number of taps used to implement the corrector and adjust the filtering coefficients. 22. Устройство терминала доступа по п.16, дополнительно содержащее первый корректор для оценки принятой информации; корректор широковещания для оценки принятой широковещательной информации и контроллер широковещания для управления работой первого корректора и корректора широковещания как функции от принятой передачи.22. The access terminal device according to clause 16, further comprising a first corrector for evaluating the received information; a broadcast corrector for evaluating received broadcast information; and a broadcast controller for controlling the operation of the first corrector and broadcast corrector as a function of the received transmission. 23. Устройство терминала доступа по п.16, которое поддерживает формат прямой линии связи, мультиплексированной с временным разделением сигналов.23. The access terminal apparatus of claim 16, which supports a forward link format, time division multiplexed. 24. Устройство терминала доступа по п.16, в котором первый демодулятор выполнен с возможностью демодуляции модулированной информации с кодовым разделением сигналов.24. The access terminal device according to clause 16, in which the first demodulator is configured to demodulate modulated information with code division signals. 25. Устройство терминала доступа по п.24, в котором демодулятор широковещания выполнен с возможностью демодуляции модулированной информации с ортогональным частотным разделением сигналов.25. The access terminal apparatus of claim 24, wherein the broadcast demodulator is configured to demodulate modulated information with orthogonal frequency division of signals. 26. Информационный сигнал, передаваемый на несущей, содержащий первую часть, имеющую модулированную информацию с кодовым разделением сигналов, и вторую часть, имеющую модулированную информацию с ортогональным частотным разделением сигналов.26. An information signal transmitted on a carrier containing the first part having modulated information with code division of signals, and the second part having modulated information with orthogonal frequency division of signals. 27. Информационный сигнал, по п.26, в котором вторая часть содержит часть пилот-сигнала широковещания и часть широковещательного содержимого.27. The information signal according to p, in which the second part contains part of the broadcast pilot signal and part of the broadcast content. 28. Способ синхронизированного широковещания, заключающийся в том, что принимают первый слот передачи; идентифицируют часть первого слота передачи, которая содержит содержимое синхронизированного широковещания, модулированного с использованием первого формата модуляции, и часть одноадресной передачи, модулированную с использованием второго формата модуляции, причем первый и второй форматы модуляции отличаются; демодулируют часть одноадресной передачи и демодулируют часть широковещания.28. The method of synchronized broadcasting, which consists in the fact that accept the first transmission slot; identifying a portion of the first transmission slot that contains the contents of the synchronized broadcast modulated using the first modulation format, and a unicast part modulated using the second modulation format, the first and second modulation formats being different; demodulate part of the unicast transmission and demodulate part of the broadcast. 29. Способ по п.28, в котором дополнительно выбирают первый демодулятор для демодуляции одноадресной передачи и выбирают второй демодулятор для демодуляции широковещания.29. The method of claim 28, wherein further selecting a first demodulator for demodulating the unicast transmission and selecting a second demodulator for demodulating the broadcast. 30. Способ по п.29, в котором второй формат модуляции является форматом модуляции с кодовым разделением сигналов.30. The method according to clause 29, wherein the second modulation format is a code division modulation format. 31. Способ по п.30, в котором первый формат модуляции является форматом модуляции с ортогональным частотным разделением сигналов.31. The method according to clause 30, in which the first modulation format is a modulation format with orthogonal frequency division of the signals. 32. Способ по п.30, в котором первый формат модуляции является форматом модуляции с кодовым разделением сигналов, имеющим широковещательный код расширения спектра, используемый многочисленными передатчиками.32. The method of claim 30, wherein the first modulation format is a code division modulation format having a broadcast spreading code used by multiple transmitters. 33. Способ по п.32, в котором этап демодуляции части широковещания дополнительно содержит этап, на котором корректируют часть широковещания.33. The method of claim 32, wherein the step of demodulating a portion of the broadcast further comprises adjusting the portion of the broadcast. 34. Способ по п.33, в котором этап демодуляции части широковещания дополнительно содержит этап, на котором обучают корректор на пилот-сигнале широковещания.34. The method of claim 33, wherein the step of demodulating a portion of the broadcast further comprises the step of training the corrector on the broadcast broadcast pilot. 35. Устройство для синхронизированного широковещания, содержащее средство для приема первого слота передачи; средство для идентификации части первого слота передачи, который содержит содержимое синхронизированного широковещания, модулированное с использованием первого формата модуляции, и часть одноадресной передачи, модулированную с использованием второго формата модуляции, причем первый и второй форматы модуляции отличаются; средство для демодуляции части одноадресной передачи и средство для демодуляции части широковещания.35. An apparatus for synchronized broadcasting, comprising: means for receiving a first transmission slot; means for identifying a portion of a first transmission slot that contains synchronized broadcast content modulated using a first modulation format, and a unicast transmission portion modulated using a second modulation format, the first and second modulation formats being different; means for demodulating a portion of the unicast transmission; and means for demodulating a portion of the broadcast. 36. Устройство по п.35, в котором средство для идентификации дополнительно содержит средство для выбора первого демодулятора для демодуляции одноадресной передачи и средство для выбора второго демодулятора для демодуляции широковещания.36. The device according to clause 35, in which the means for identification further comprises means for selecting a first demodulator for demodulating a unicast transmission and means for selecting a second demodulator for demodulating a broadcast. 37. Устройство по п.36, в котором второй формат модуляции является форматом модуляции с кодовым разделением сигналов.37. The apparatus of claim 36, wherein the second modulation format is a code division modulation format. 38. Устройство по п.37, в котором первый формат модуляции является форматом модуляции с ортогональным частотным разделением сигналов.38. The device according to clause 37, in which the first modulation format is a modulation format with orthogonal frequency division of signals. 39. Устройство по п.37, в котором первый формат модуляции является форматом модуляции с кодовым разделением сигналов, имеющим широковещательный код расширения спектра, используемый многочисленными передатчиками.39. The apparatus of claim 37, wherein the first modulation format is a code division modulation format having a broadcast spreading code used by multiple transmitters. 40. Способ по п.39, в котором средство для демодуляции части широковещания дополнительно содержит средство для коррекции части широковещания.40. The method according to § 39, in which the means for demodulating part of the broadcast further comprises means for correcting part of the broadcast. 41. Способ по п.40, в котором средство для демодуляции части широковещания дополнительно содержит средство для обучения корректора на пилот-сигнале широковещания.41. The method of claim 40, wherein the means for demodulating a portion of the broadcast further comprises means for training the corrector on the broadcast pilot.
RU2006101401/09A 2004-01-20 2005-01-20 Synchronised broadcast/multi-address communication RU2379840C2 (en)

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US60/537,955 2004-01-20

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RU2379840C2 RU2379840C2 (en) 2010-01-20

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